Goop Puncture Preventative is an environmentally friendly bike tyre sealant, offering freedom from punctures. It's also ideal for protecting from those irritating flat tyres that always appear to happen when you are enjoying yourself.

When added to your tyres, any escaping air quickly forces Goop's rubber particles into the hole to form a long lasting plug that prevents any further pressure loss.

Goop lasts for the life of your tyres, but is also water soluble so it can be easily washed away if a repair is necessary.